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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 994 · 40 sums
TalentJR

The method (Count on): Start with the bigger number. Count on the smaller number, one finger at a time. For a missing number (8 + ? = 15), count on from 8 up to 15, or take away: 15 − 8.

NameDateTime takenScore ___ / 40
  1. 1.There are 3 yellow balls and 12 blue balls. How many balls are there in all?
  2. 2.Priya has 7 kites and gets 6 kites more. How many kites does Priya have now?
  3. 3.There are 6 blue crayons and 13 red crayons. How many crayons are there in all?
  4. 4.8 + 8 + 2 =
  5. 5.? + 9 = 17
  6. 6.There are 5 red beads and 4 white beads. How many beads are there in all?
  7. 7.Kavya has 12 flowers and gets 7 flowers more. How many flowers does Kavya have now?
  8. 8.There are 3 blue kites and 13 pink kites. How many kites are there in all?
  9. 9.There are 2 yellow balls and 13 pink balls. How many balls are there in all?
  10. 10.5 + ? = 14
  11. 11.5 + ? = 15
  12. 12.There are 2 green balloons and 13 red balloons. How many balloons are there in all?
  13. 13.1 + 7 =
  14. 14.3 + 6 + 9 =
  15. 15.11 + 4 =
  16. 16.? + 11 = 18
  17. 17.5 + 8 =
  18. 18.3 + 4 + 13 =
  19. 19.5 + 8 + 1 =
  20. 20.? + 3 = 12
  21. 21.? + 4 = 5
  22. 22.13 + ? = 17
  23. 23.4 + ? = 6
  24. 24.18 + 2 =
  25. 25.Ananya has 7 kites and gets 5 kites more. How many kites does Ananya have now?
  26. 26.1 + ? = 3
  27. 27.3 + 10 =
  28. 28.4 + 4 =
  29. 29.1 + ? = 4
  30. 30.17 + 1 =
  31. 31.Diya has 7 books and gets 10 books more. How many books does Diya have now?
  32. 32.12 + 2 =
  33. 33.There are 10 yellow balloons and 9 green balloons. How many balloons are there in all?
  34. 34.17 + 2 =
  35. 35.? + 10 = 16
  36. 36.Karan has 10 mangoes and gets 1 mango more. How many mangoes does Karan have now?
  37. 37.14 + 2 =
  38. 38.6 + 2 =
  39. 39.There are 6 white flowers and 8 red flowers. How many flowers are there in all?
  40. 40.16 + 1 =

Answer key

  1. 15
  2. 13
  3. 19
  4. 18
  5. 8
  6. 9
  7. 19
  8. 16
  9. 15
  10. 9
  11. 10
  12. 15
  13. 8
  14. 18
  15. 15
  16. 7
  17. 13
  18. 20
  19. 14
  20. 9
  21. 1
  22. 4
  23. 2
  24. 20
  25. 12
  26. 2
  27. 13
  28. 8
  29. 3
  30. 18
  31. 17
  32. 14
  33. 19
  34. 19
  35. 6
  36. 11
  37. 16
  38. 8
  39. 14
  40. 17

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